Curious, how much regen do you use at the track and why? I'm finding its hard to judge how much the car will slow going into a corner with regen and I'd rather just trail brake using the actual brake. Probably something I just need to get used to.. what are others finding?
If you're not fast yet, use regen - it gives you more time before recharge. Once you're faster you want to go middle level to have better control. And if you fast and have track brakes, you want to overheat later.